Heating system



2 1927. 1637 341 Aug J. HOLAN HEATING SYSTEM Filed Dec. 22. 1924 2Sheets- Sheet 1 anozuto'a 2 1927'. Aug J. HOLAN HEATING SYSTEM 2Sheets-Sheet 2 Filed Dec. 22. 1924 Patented Aug. 2, 1927.

UNITED STATES 1,637,341 PATENT OFFICE.

JAMES HOLAN, OF CLEVELAND, OHIO.

HEATING SYSTEM.

Application filed December 22, 1924. Serial No. 757,390.

and the circulating p ump of the motorfor forcing the water through thesystem. lt s a further object of the invention to prov de .a heatinsystem that will be especially adapted for use in motor busses and whichwill efliciently heat the interior of the bus body without detrimentallyaffecting the operation of the motor. A further object of the inventionis to'provide a system, of the type referred to, that may beconveniently controlled from the operators station in the vehicle andwhich shall include means for closing off the circulation of air throughthe motor radiator when the cooling water of the motor is beingcirculated through the heating s stem. b

A furt er object of the invention is to provide a heating system, of thetype re- 26 ferred to having its parts so arranged as to preventireezing, either of the heating systern or of the regular cooling systemof the motor, during severely cold weather.

Other objects of the invention and the 80 features of novelty will beapparent from the following description taken in connection with theaccompanying drawings, of which: 1

Figure 1 is a lan view of. the interior of a5 a motor bus, em odying myinvention;

Fi 2- is a side elevation thereof, with certain parts broken away;

Figure 3 is an enlarge fragment of Fig. 1, with certain parts showninsection; A gig. 4 is an enlarged fragment of Fig. 2; an Fig. 5 is anenlarged section on' the line 5-5 of Fig. 4. a

Referring to the drawings, 10 indicates a motor bus body which isprovided with the cross seats 11, 12,13, 14, 15 and 16, for passengers,an a seat 17 for the operator. The motor for operating the vehicle isindicated atl8 and is of theusual water-cooled type, with which there isassociated the usual radiator 19, at the front end of the vehicle,.thecirculating pumpl '20, the manifold 21 through which t e hot water isconvey from the motor to the upper part of-the radiator 19, and the pipe22, by which the water is conducted from the lower part of the fitting23,

radiator 19 to-the suction side of the pump 20, the connection betweenthe pipe 22 and the pump being made through a T-fitting 23. From thepump 20', the water is discharged into the motor jacket by the pipe 24.

At convenient points in the body 10, and preferably under certain of theseats, I arrange radiators such as are indicated at 25, 26 and 27. Theseradiator being preferably of the type that is commonly known as a wallradiator, which is relatively thin; this type of radiator only taking upvery small space vertically and, therefore, being well adapted forinstallation underneath the seats of the vehicle.

In the connection between the manifold 21 and the top of the radiator, Iarrange a 3- way valve 28 and connect with the side of this valve a pipe29, which extendsrearwardly over, the top ofthe motor, then downwardlyto the floor of the body and rearw'ar'dly along the floor, inside of thebody, to the radiator 25. As will be seen from Fig. 5, the valve 28 maybe positioned to direct the water from the manifold 21 into the radiator19, or from the "manifoldo2l into the pipe 29. The valve 28 is actuatedby a'lever 30 and when this lever, and the valve 28, are in thepositions shown in full lines in Fig. 5, the water will flow from themotor to the radiator 19. When lever 30 is in the dotted line position,shown in Fig. 5,- the water will flow from pipe 29 and the top of theradiator 19 will be cutofl from the manifold 21.

From the radiator 25 the water flows through the pipe 31 to the radiator26 and then from the latter, through the pipe 32, to the radiator 27. Areturn pipe 33, conducts the water from the radiator 27 back to the thepipe 33 being arranged just above the floor of the vehicle body. Thepipes 22 and 33 are in open communication with the suction side of thepump 20 so that the pump will draw the water either from the radiator 19or from the radiators within the body, depending upon the position ofthe valve 28.

The dash is indicated at 34 and a thermometer 35, is arranged in thepipe 29, near the dash so that it may be conveniently read by theoperator from the seat 17. A handle 36 is connected with the lever 30and extends dash 34 to a point where it may be conveniently operatedfrom the seat 17, the handle being provided with the notches the motorinto the temof air.

In the operation of the system above described,rif the valve 28 is inthe full-line position, shown in Fig; 5, the water will be circulatedfrom the radiator 19 through the motor jackets and manifold 21 to thetop of the radiator 19, whence it descends and is cooled by the aircirculated through the radiator, in. the usual ,manner. If the handle 36is then drawn rearwa-rdly to swing the valve 28 through an angle ofninety degrees, the water will then be forced from the manifold 21 intothe pipe 29 and from the latter through the radiators 25, 26 and 27, andreturn to the pump 20by means of the pi 33, there beln -no circulationthrou h t e radiator 19 un er these conditions. En this mannerthe hotcooling water of the motor may be utilized to heat-the interiorof thevehicle body and when the tem erature within the body reaches the desiredegree, the handle-36 is moved forward to return the valve 28 to thefull-line position, shown in Fig. 5, and then'the circulation will bethrough the radiator 19 and-there will be no circulation through theheating system in the body.

When there is no circulation through the radiator 19, the water in thisradiator will be quickly cooled by the air circulating therethrjough,and-in very cold weather this mightyresult in freezing up this radiator.To avoid this contingency, I provide means, for preventing thecirculationof air through the radiator 19, when the valve 28 is set to"direct the water from the motor through the heatingsystem of thevehicle body. Such means consists of a series of shutters 43 which aremounted on small horizontal shafts 44, in front of the radiator 19.These shutters are connected to ther, so as tomove in unison, by theside 'lin ifi. An actuating rod 46 extends from the u p er shutter 43through the radiator. 19 an is then turned upward and connected with thelever 30, so

as to move with the latter. By this arrangement the shutters -43 willbein the open position, shown inFig. 4', when the valve 28 is set tocirculate the water throughthe radiy to a point adjacent the seat 17,

ator 19, but when the position of the valve 28 is changed to circulatethe water through r the radiators in the body, the shutters 43 will belowered and prevent the flow of air through the radiator 19. Theoperation of the shutters 43 is, therefore, so arranged as to require noattention on the part of the vehicle operator;

It will be noted, fromFig. 2, thatthe radiators 25, 26 and 27 and thepipes by which I water is circulated throu h these radiators,

the valve 42 in a relatively high positiorlii this valve ma be left openpractically a of the time without danger of the water be-- ing forcedout through the vent pipe. This Wlll prevent any accumulation of steamin the heatin system.

While I ave illustrated a particular style of bus body and arrangementof radiators therein, it will be understood that these de-,.

tails are subject to change to suit the st 10 of body to which theinvention is applied and such changes are intended to be within thescope of the invention, which is defined in the appended claim.

Having thus described my invention, what I claim 1s: 4

In a motor vehicle having a water-cooled motor, a radiator, acirculating pump and system of connections whereby the water iscirculated through the motor and radiator, the combination of a radiatorin the body of the vehicle, a pipe for su plying hot water to thelast-mentioned radiator connected to said circulating system at a pointbetween the motor and the first-mentioned radiator, a valve at saidpoint for directin the hot water from the motor either to therst-mentioned radiator or to said pipe, a return pi from thesecond-mentioned radiator to t e connection between thefirst-mentionedradiator and said pump, means for shuttin off the' flow of coolingairthrough the g mentioned radiator, and operatin means for Said valve andthe last-mentione means extending into said body to a point accessiblefrom the operators station therein and whereby the flow of air throughthe radiator may be interruptedwhen said valve is positioned to directthe water into said pipe. In testimony whereof I afiix my signature.JAMES HOLAN.

